Window operating and locking mechanism.



E. P. SPERRY.-

WINDOW OPERATING AND LOOKING MECHANISM.

APPLICATION FILED DEG. s, 1906.

929,801. Patented Aug. 3, 1909;

1M mygfizv-ezor. W. a ia' Witnesses,

ANDiEW 9, 0mm: 00.. FHQ'O-LIMOGRAVHERS. WASHINGTON, a O.

EVELYN P. SPERRY, OF OAK PARK, ILLINOIS.

WINDOW OPERATING AND LOCKING MECHANISM.

Specification of Letters Patent.

Application filed December 3, 1906.

Patented Aug. 3, 1909.

Serial No. 346,067.

To all whom it may concern.

Be it known that I, EVELYN P. SPERRY, a citizen of the United States, residing in Oak Park, in the county of Cook and State of Illinois, have invented certain new and use ful Improvements in Window Operating and Locking Mechanisms, of which the following is a specification.

This invention relates to that class of win dow operating and locking mechanisms comprising lever mechanism adapted to be operatively connected with a window and provided with locking mechanism adapted to lock the lever mechanism and thereby the window in different adjusted positions.

The principal object of the invention is to provide a simple, economical and efficient window operating and locking mechanism.

A further object is to provide a device of the class described, having lever mechanism adapted to be connected with the window and adjusted to different positions in which no part of such lever mechanism, when locked, is required to extend beyond the inner edge of the window stool or window frame so as to be in the way on the inside, or visible or accessible from without with locking mechanism adapted to lock such lever mechanism and thereby the window in different adjusted positions as desired, and with a foldable hand lever for operating or adjusting the lever mechanism and thereby the window, such locking mechanism and hand lever being so constructed and arranged that the locking mechanism and the lever mechanism to be locked may both be operated by means of the same hand lever which is also foldable into position to shield and inclose the locking mechanism, conceal the unsightly parts and enable the whole device to occupy a small space while locked in position to afford the maximum strength and security.

Other and further objects of the invention will appear from an examination of the drawings and the following description and claims.

The invention consists in the features, combinations and details of construction hereinafter described and claimed.

In the accompanying drawings Figure 1 is a plan view of a window operating and looking mechanism in looking position, showing the hand lever in folded position in dotted lines; Fig. 2, a plan View of the same in releasing position; Fig. 3, a view in side elevation of the operating and locking mechanism shown in Fig. 1 Fig. 4, a detail plan view of the supporting and guiding plate, and Fig. 5, a side elevation of said plate.

In constructing a window provided with operating and locking mechanism constructed in accordance with my improvements, I provide a window sash a which is mounted in a window-frame 1) upon hinges 0 so as to swing in a horizontal plane. A main operating lever d is pivotally connected, by means of a pivot c with a base-plate f such base plate being secured to the windowframe beneath the stool or top member of the window-sill, by means of screws g. A lever h is pivotallg connected with the outer swinging end of he main operating lever d by means of a ivot i. One end 3' of the lever h is pivotal y connected with a link is by means of a pivot l, and the link is is pivotally connected with the base-plate by a pivot m. Connecting mechanism consisting of a bracket 0 is mounted upon and secured to the sash by means of screws s, and has a plural ity of loop or socket portions in which is slidably mounted a horizontal rod n having a central lug 9 between the loop or socket portions of the connecting bracket. The outer swinging end of the lever h is connected with this lug by means of a rivet r. The lever mechanism is thus flexibly connected with the window-sash and is adapted to move the window to any desired adjusted, open, closed or intermediate position.

It is desirable that the locking and operating mechanism be concealed and shielded so far as possible, and that it be inaccessible from the outside. In order to provide means whereby the required leverage can be obtained and the parts shielded and concealed, the portion of the main operating lever which extends inside the pivot e is made sufficiently short so that it preferably will not extend beyond the inner edge of the stool or member which covers the wlndow-sill. The position of the inner edge of the window stool is indicated in the drawings by the dotted line p. A hand lever or handle 2 is provided, having a depending shielding flange portion 3 for shielding the locking mechanism and engaging the main operating lever. One end of this hand lever is provided with an elongated slot 4 into which a pivot pin 5 connected with or mounted upon the main oper ating lever extends. A toothed guiding segment which is mounted on the main operating ivtf d supports the hand leverifhisi toothed securing and guiding. segment 6 and the inner end of the main operating lever are provided with a slot 7 in: position to receivethe end of the depending flange of the hand lever when in extended operative. posit on. The elongated'slot extends lon itudinally of the hand lever and parallel wit li its depend ing flange, so that the flange may be inserted into the slot? and withdrawn when desired, and the hand lever folded into position to shield and conceal the locking mechanism, as indicated in dotted lines in Figs. 1 and The required leverage may thus be'obtained by means of mechanism adapted to be concealed and no part of which is required to eX tend beyond the inner edge of the window stool so as to be in the way, or so asto be visible or accessible from without when mechanism is in looking position.

A supporting guiding member or plate 8 is operating and locking member 12 is also pivotally mounted upon the guiding and supporting plate by means of a pivot pin 13.

This locking member has an integral locking hook portion 14 forming one end thereof, and

a cam portion or lug 15 between such hooked end and the operating lever or handle portionwhich formsthe oppositeend of such locking member. Said hooked locking member is also provided with a curved orsegmental slot 17 into which extends a headed pin 18 for securely holding and guiding the locking member, minimizing the strain upon the pivot pin 13 and insuring proper engagement with the pawl notwithstanding any Wearing away of the pivotal hearings or pins. The cam portion of this locking member is in sliding engagement with the adjacent slightly curved side of the toothed pawl 11 already 7 described. The'movement of the said 10010 ing member to locking position as shown in Fig. 1 presses the pawl into toothed engagement with the toothed segment and causes the segment to be clamped between and rig- "idly held in position by the pawl and the hooked or slotted portion of the plate 8, so that the parts are securely locked. and the main operating lever braced and rigidly held in any desired adjusted position by the plate Sand the locking mechanism thereon in such a'manner as torelieve the pivot pins of most oi the strain to which they would otherwise be the subjected. In other words the security, strength, durability and efliciency of the device is caused to depend as little as possible u on-the strength; of the pivot pins and is it us increased.

- Thelocking member 12 is somewhat -in the for-m of a bell-crank, and its inner end isprovided with a depending and inwardly extend- "ing portion 19 and an upwardly extending stud or catch ZQ'UPOHZSUOlT depending in wardlyextending portion adapted to engage the depending flange portion of the hand lever 2 and enable the locking member 12,. and thereby the pawl to be locked and ie-f leased by the operation of such. hand lever, which is also adapted to operate or adjust the lever mechanism which is to be locked. 1

The movement of the hand lever to folded position as shown in dotted lines in Fig. 1 causes it to engagethe inner endiof the locks ing member 12and move it and thereby the pawl to locking position. The movement ofsaid hand lever from folded position in the opposite direction causes itto engage the catch 20 and move the locking mechanism to releasing position. The continuation of this movement of the handlever for the purpose of bringing it into position to operatively engage the levermechanisin to be operated oradjusted causes it to slip out of engagement with the catch and locking mechanism. The hand lever is so mounted that it has sufiicient elasticity to permit it to slip over and into and out of engagement-- with the catch 20- as-requircd, but the catch is of sufficient depth to hold the hand lever in engagement "during the operationof the locking mechanism thereby, andprevent the accidental swinging of the hand lever to extended position. Y

By the above arrangement the locking mechanism may be operated by the move ments of the hand leverto' and from its folded and extended of operative positions or independently of'the hand'lever, as de-' sired. The necessity for such additional'or independent operation, however, is, obviated and the locking operation facilitated -and rendered less liable to be overlooked'.-

Iclaim: l "1 1. In a device of the class described, the combination of lever mechanism having; a securing segment 'orarm, a pawl movable into and out of securing engagement with" such securing segment or arm, a locking inem her in engagement with such pawl, and an operating lever provided with means for connecting it with such lever mechanism and movable into engagement with such locking member. j

2. Ina deviceof the class-described, the combination of lever mechanism provided with means for connecting it witha window and having a securing segment or arm, a pawl movable into andout .of securing en;-

gagement with such securing segment or arm, a locking lever having a cam portion in engagement with such pawl, and a hand lever provided with means for connecting it with the lever mechanism having the securing segment or arm, and movable into operative engagement with said locking lever for operating it and thereby the pawl.

3. In a device of the class described, the combination of lever mechanism provided with means for connecting it with a window and having a securing segment or arm, a pawl movable into and out of securing engagement with such securing segment or arm, and a locking member in engagement with the pawl and having a hook portion movable with relation to the pawl and into and out of hooked engagement with the lever mechanism.

4. In a device of the class described, the combination of lever mechanism having a securing segment or arm, a pawl movable into and out of securing engagement with such securing segment or arm for securing the lever mechanism in stationary position, a locking member provided with a cam portion in engagement with the pawl and means for connecting such locking member and lever mechanism with a window sash.

5. In a deviceof the class described, the combination of a main operating lever provided with means for connecting it with a window and having a securing segment or arm, a guiding member and pawl between which such segment or arm extends, and means for locking the pawl and guiding member in clamping engagement with the securing segment or arm.

6. In a device of the class described, the combination of a lever pivotally mounted and provided with a securing segment or arm, means for connecting such lever with a window sash, a pawl movable into and out of securing engagement with such segment or arm, a pawl operating lever, and a supporting and guiding plate upon which such pawl and pawl operating member are mounted provided with a guiding portion in en agement with such segment or arm of the ever mechanism.

EVELYN P. SPERRY. Witnesses JAMES A. BEcKwITH, NELLIE E. GEORGE. 

